GEORGE Hamilton gets along with his ex-wife, Alana Hamilton Stewart – but there are limits. Alana was at Nobu in Malibu dining with two girlfriends when her son, Ashley, came in. “What are you doing here?” she asked. “I’m having dinner with Dad,” he replied. George then arrived with two pretty blondes. After exchanging pecks on the cheek with Alana, the sun-baked actor was seated at the next table. He squirmed for a few minutes before asking to be moved. Watching the drama were Nancy Sinatra with Linda Foster, and Mike Ovitz with lawyer Bert Fields.